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Re: capturing sub-expressions?


From: Dan Stromberg
Subject: Re: capturing sub-expressions?
Date: Wed, 06 Feb 2008 02:33:17 GMT
User-agent: Pan/0.132 (Waxed in Black)

On Tue, 29 Jan 2008 18:27:05 -0800, Linda Walsh wrote:

> Paul Jarc wrote:
>> Linda Walsh <address@hidden> wrote:
>>> p="-e -p 60 -x"
>>> ---
>>> That's why I wanted the capture -- to pick out the 60 -- where 60
>>> represents a positive integer.  The space between the -p and the
>>> number is optional.
>> 
>> It sounds like you're looking for getopt.
> ---
>       I knew about getopt -- was just wanting a string-manipulation
> mechanism to do it, but am maybe getting too used to string
> manipulations in perl?  Would still love to use perl's full RE's in bash
> expressions, such is life...  (am not sure I want it enough to try
> implementing/merging them...:-)) Linda

If it's regex's you need, sed can do them nicely (without needing to 
leave the world of shell programming), and python has "perl compatible 
regex's" - but then python will often have a better way than regex's to 
do things.  :)




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